So you have a bunch of anarchists, anti-law enforcement types, and socialists rallying together. This should be good. Even Mexican citizens are calling for a boycott of all things "gringo".
It seems organizers want to live the premise of the movie "A day without a Mexican", which attempts to show what would happen to the USA if one day we woke up and no more Mexicans were living in our midst. Turning the tables for a moment, let's consider what it would be like for Mexicans if they woke up one day and there were no more Americans.
A Day Without a Gringo
In sum, it might be prudent for Mexicans (and all Hispanics for that matter) to step back and consider for a moment what a jewel the United States of America is. We employ, teach, and cure millions of Hispanics who otherwise would have no such opportunity in their home countries. To top it off, the wealthy classes in Mexico and Central America prosper because the USA buys their goods and services by the billions. Rather than economic extortion, how about a simple "Thank You"?